Finding the Fourth Proportional to 211,882.85, 317,704.68 and 69,689.68
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Solution
The fourth proportional to 211,882.85, 317,704.68 and 69,689.68 is: 104,495.19
Step by Step Solution
- Step 1: Write the proportion equation
211,882.85 : 317,704.68 = 69,689.68 : x - Step 2: Convert to fraction form
211,882.85/317,704.68 = 69,689.68/x - Step 3: Cross multiply
211,882.85x = 317,704.68 × 69,689.68 - Step 4: Simplify right side
211,882.85x = 22,140,738,476.53 - Step 5: Solve for x
x = 22,140,738,476.53/211,882.85 - Step 6: Final answer
x = 104,495.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.